From what was written about Jones, I think it means "He isn't fit enough to play two games in a week". That may have been the case for some time, for all we know. There may be others still at the NYS who are in the same category too, unfortunately. (With our packed fixture schedule - let's hope not!)
Paul Davis (Advertiser) Twitter - Jacob Gratton is back in full training and is available for a non-league youth loan if a suitable club comes in for him, although the current Covid situation makes that difficult.
Interview with "Cobblers" Manager Keith Curle in Northampton local press - Mickel Miller is back in training, and may even be in the Cobblers squad for tomorrow
Jones (Crewe A.) and Kayode (Carlisle U.) wiil not be in action tomorrow - games called off due to frozen pitches.
Wigan Ath. game is now scheduled for Sunday, so only two of the "Loan Squad" at most playing tomorrow.